Synology Rail Kit (RKS1314) Synology Rail Kits are designed for installing your Rack Station on the rack. Synology Rail Kits are backed with Synology's 1-year limited warranty. 2U Sliding Rail for 1U/2U x13/x14 models Rail Kit offers the following choices: Synology RKS1314 - Rail Kit Sliding Mount post width must be equal to or greater than 451mm Panel width must be equal to or greater than 480mm Cabinet depth: 680mm 910mm